CHICAGO (CBS) — One day after setting a record for heat, Chicago is ushering more autumn-like weather on the last day of summer.

Chicago’s official high reached 93 on Thursday, topping the old record of 92 for Sept. 20, set just last year, according to the National Weather Service.

Temperatures have plunged since then, falling to about 70 as of mid-afternoon on Friday, heading to a low of about 53 overnight.

Highs will linger in the mid 60s to low 70s over the weekend, with mostly sunny skies and dry conditions.

Next week will start off a bit warmer than normal for fall, with highs in the upper 70s on Monday and Tuesday, which will bring a chance for scattered thunderstorms most of the day.

The rest of next week will be seasonably cool, with highs in the upper 60s Wednesday and Thursday, and the low 60s on Friday.